Heating apparatus.



- PATENTED'JAN.14, 1908. w. SOHRAMM & F. BECKER.

HEATING APPARATUS.

' APPLICATION FILED MAY 3, 1907.

INVENTOHJ awn film @WQL M M ATTORNEY THE NORRIS PETERS co., wAsHmc'raN,n c.

UNITED STATES PATENT OFFICE.

WILHELM SOHRAMM AND FREDERICK BECKER, OF NEW YORK, N. Y. I

HEATING- APPARATUS.

Specification of Letters Patent.

Patented Jan. 14, 1908.

To all whom it may concern.

Be it known that we, WILHELM SoHRAMM and FREDERICK BECKER, both subjectsof the German Emperor, and residents of New York, county and State ofNew York, have invented certain new and useful Improvements in HeatingApparatus, of which the following is a specification.

The present invention ertains to heating apparatuses and particu arly tosuch that are designed for use in smoke houses for smoking meats,sausages and the like, and has for its object to provide a constructionby means of which the heat of an ordinary gas burner can be greatlyincreased to be available for above purposes.

Our invention is illustrated in the accompanying drawing in whichsimilar reference letters denote corresponding parts and in which Figurel is a vertical section through our apparatus; Fig. 2 a plan viewthereof, the reflector being removed and Fig. 3 is a cross sectionthrough line 33 of Fig. 1.

l/Vith reference to the drawing, a denotes the burner pipe which isadapted to be connected with the gas supply pipe and which may be formedas a Bunsen burner. The upper end of this burner pipe terminates intoand is secured to an open topped metal casing b which at its lowerportion and in its bottom is provided with a number of air holes 0.Attached to the top of said casing, is a support (Z carrying avertically and centrally extending rod 6 that projects into the casing band is capable of being vertically adjusted. Rigidly secured to thebottom of said rod 6 and surrounding the latter is a hollow conical bodyf the apex of which is directed towards the mouth of the gas burner.This conical body f is open at its top and is provided with a pluralityof perforations g on its circumference. Secured to the circumference ofthe conical body is a spiral flange h preferably made of a metal that isa good conveyer of heat, as for instance, sheet copper or the like. Thisspiral rib is curved to form a trough shaped concave surface directedtowards the bottom of the casing 11. The upper end of the rod 6 isprovided with screw thread and carries a nut 'L, by the rotation ofwhich the rod can be adjusted in vertical direction whereby the conicalbody f is brought nearer to and farther from the mouth of the gasburner.

Secured to the free end of the rod 0 and exl is as follows:

tending over the casing b is a concaved heat reflector 7. The lower endof the rod e may be guided in vertical direction by a cross wire 16attached thereto and having its downwardly bent ends Z, Z guided inbrackets m m.

The mode of operation of this apparatus, The flame at the mouth of thegas burner acts against the lower end of the spiral flange h which asstated, being a good conveyer of heat, gradually conveys the heat to theupper end of the conical body, render: ing the same red hot. At theupper end, the heat is reflected by the reflector j. The flame alsopasses through the perforations 9 into the hollow space of the conicalbody and heats the latter also from the inside, which prevents theheater from being cooled down by the cold air entering from the top ofthe heater.

Having thus described the nature of our invention, what we claim anddesire to secure by Letters Patent is:

1. A heating apparatus comprising a burner pipe, an open topped casingsecured to the mouth of the latter, an adjustable open topped conicalbody projecting with its apex downwards into the casing towards themouth of the burner pipe, said body being hollow and having a spiralflange on its circumference, the said flange being a good conveyer ofheat, and a heat reflector above 'said casing and conical body,substantially as set forth.

2. A heating apparatus comprising a burner pipe, an open topped casingsecured to the mouth of the latter, and having'air holes at its lowerportion and in its bottom, a support secured to the top of the saidcasing, an adjustable open topped conical body suspended from saidsupport and projecting with its apex downwards towards the mouth of thesaid casing, said body being hollow and having perforations on itscircumference, and a spiral flange which is a good conveyer of heat, anda heat reflector above said casing and conical body, substantially asset forth.

3. A heating apparatus comprising a burner pipe, an open topped casingsecured to the mouth of the latter, a support at the end of said casing,a rod adjustably borne in said support and projecting centrallydownwards towards the mouth of the said burner pipe, an open toppedconical body secured to said rod and surrounding the latter, saidconical body being hollow and having perforations and a spiral flange onits circum- Signed at New York this 1st day of May,

ference, the latter being a good conveyer of 1907.

heat, means for guidin the lower ends of WILHELM SCHRAMM.

said rod and conical body in vertical direc- FREDERICK BECKER. 5 tion,and a heat reflector secured to the upper Witnesses:

end of the said rod-above the casing and the JosEPH E. CAVANAUGH,

conical body, substantially as set forth. MAX D. ORDMANN.

